Loom.



A. F. RAYMOND, A. MATHIEU & C. LAVALLE.

LOOM.

APPLlC-ATlQN FILED MAR. 19, I917.

Patented Mar. 11,1919.

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UNITE STA! PATENT ARTHUR F. RAYMOND, ALPHONSE MATHIEU, AND CYRIL MASSACHUSETTS.

LAVALLE, or WEBSTER,

LOOM.

Specification of Letters Patent.

PatentedMar. 1 1, 1919.

Application filed March 19, 1917. Serial No. 155,915.

To all whom it may concern:

Be it known that we, ARTHUR F. RAY

especially when twoor more shuttles are employed. V

The invention resides in the appllcatlon to a shuttle box of means for firmly retaining and gripping the shuttle thread each time theshuttle is sent fully home in said box, so that the projecting portion of the thread, beyond the shuttle bx,is held taut, and is prevented from. sagging and thus becoming entangled with any of the other shuttle threads'of. the loom. We have shown our invention embodied in convenient form as an attachment to existing shuttle boxes of well known construction, the same being applicable to such shuttle boxes without necessitating any changes in'the latter; however, it is to be understood that our invention is in no sense limited to the construction herein shown anddescribed, but that itsessential features are applicable to any and all types of picking mechanisminwhich it isfound desirable to revent the sagging and entanglement o the shuttle thread, regardless of the manner'in which it is applied thereto.

Our inventlon is fully set forth in the followingdescription and illustrated in the accompanying drawings, in which-- Figure 1 is'a front view of a well known form of shuttle box .having our invention applied thereto. Y r r Fig. 2 is a section online 2-2, Fig. 1, showmg the partsin the positions which '2 for the traverse of a pair offshuttles, obviouslygthe number of such raceways and usual manner.

they assume when the shuttle is driven 7 home in the'box. Q Fig. 3 is a view similar to Fig. 2, but

showingthe parts in the positions assumed in the absence-0f a shuttle. r of Massachusetts,

Fig. 4' is a sectional view on line 4-4, Fig. 1. 1

Like reference characters refer to like parts in the different figures. i

We have illustrated our invention in con,-

nection with a shuttle box of wellknown construction, here shown as of: themultiple type embodying superposed raceways 1 and shuttles may be increased indefinitely. The raceway for each shuttle is constituted by the back wall 3 of the box, and the horizontal partition' or 4:, as the case may be, on which the shuttle slides, there being, the usual clearance between said shuttle and the front wall .5 of the box. In the manner common to devices of this class, the front of the box, at

the end remote from the wall 5v provides bearing lugs 6, 6, for ashaft-7, on which are journaled the usual swells or: shuttle binders 8, 8. The latter are urged inwardly by the springs 9, sothat as the shuttles move to the right, Fig. 1,'in their raceways, the

central portions of the swells 8 are pressed yleldingly against the shuttles to arrest their movement and to. prevent rebound, in the The free ends of the swells 8 are limited'in their .outward movement by a rod 10 which is carried by lugsllon the front wall 5 of the box.

It will be understood that when a shuttle .is driven .home? in the box,by reaching the end of its movement to the right, Fig. 1, the;

weft thread carried thereby, as shown at 12, Figs. 1 and 4, is ordinarily liable-t0 sag downwardly or'to be pulled out oflplace by the beating action on the-fabric, and our lnvention aims to provide a gripping mechanism for said thread, to hold the latter taut when itsshuttle isat rest within the box and ,to release said thread just; as soon as said shuttle beg ns its next succeeding pick. To V but this end, it is proposed to clamp the thread I 12 against the rear face of front wall 5,

within the raceway in which the corresponding shuttle travels, the clamping mechanism being rendered operative by the arrlvabof the shuttle at the end of its movement n said raceway. In order to adapt this clampi g mechanism to the shuttle boxes now in ordinary use, theoperating mechanisrntherefor may conveniently be mounted on a pair of brackets 13 and 14, which are carried the shaft 7 between the bearing lugs 6 thereof and the interposed pivoted swell or shut tle binder, 8. The upper bracket 13 of each bar has pivoted thereto at: 15- a depending arm 16, which has a projection 17 adapted to be struckby the shuttle 18-, Fig. 2. In the absence of a shuttle within the raceway, the, depending arm 16' is held yieldingly by a spring 19 in the position shown in Fig.

8, with the projection 17' in the path of the front side of a shuttle. The lower end of the arm 16 is formed witha segmental rack '20, which is in mesh with a pin-ion 21 on a rod 22, the latter-being j'onrnal ed, adjacent said pinion, in abearing provided by the lower bracket 14. of the pair of brackets hereinhefore referred to. The rod 22 is extended to; the other end of the shuttle box, where it maybe supported in; a journal23 attached to: the under side of the corresponding horizontal; partition 4: or 4!, on which the shuttle The rod 22 has: secured to its end a clamp: ing member-'24, which normally lies in the position shown Fig; 3bel'ow the partition 4t on which the shuttle 18 travels, the spring 19 acting on the 16 to rotate; the rod 22 a counterclockwise direction. When the shuttle is driven home the box the front face thereof at its advanced end hecomes gradually more and more effective against p ojection: 17, owing to the taper of the shuttle, to. rock the arm 16 from the position shown in Fig. 3 into the 7 shown in 2. The movement of arm 16 causing said member to move is transmitted throngh rack; 20- and' pinion "21 torotat'e rod 22 thereby moving the clamping member 243 into the position shown in Figs; 2. and 4, where it grips the thread 1 2 against therearfaceofthe front wall 5 within the raceway. As soon as the next g pring=19- bereturn the-arm 16 to the Fig. 3, thus releasing the clamping: member- 24 and e V V downwardly, out of the path of the shuttleand the-thread position shownin thread from: the

- 12. carried thereby.

'We claim,

1. In a loom, means forcl'amping thc'weft thread at the open end of the shuttle box,

and means, located; at the closed end of the .shualsg o ana actuated by the.- shuttle, for

position shuttle box and a shuttle having a tapered end, of means for clamping the weft thread the open end of the shuttle box, and

means, located within the shuttlebox and actuated by the tapered end of the shuttle for operating said: clamping means.

4. In a loom, the combination wlth a shuttle box and a shuttle, of means for; clamping the shnttlegbox at the openend of the shuttle box, and means located in the shuttle box and actuated by the shuttle for operating said clamping means. I

5. In a loom,thecombination with a shnttle box and traveling shuttle, of means for clamping the shuttle thread at; one end ofsaid box, and actuated bythe shuttle upon its arrival' at the other end of said box;

6. a loom, the combination with a shuttle box and a traveling shuttle, of means for clainpingtheweft thread at the-open end of the shuttle box, meanslocated. in the shut-tle box and-actuated by the shuttle for bringing saidclamping means into action, and means operative upon the movement of the shuttle out of the shu-ttIe box for. releasing said clamping means; V s '7. In a. loom, the combination with the shuttle hex, of means; for clamping the weft box for actuating said clamping means-,7 coinpri sing a swinging lever the path of the gins its return movement.

' 8-. In a loom, means for-clampin'g the wee thread at the open end of the shuttle box, means for 'actuating the clamping*means locatedat the opposite end of the shuttle the weft thread against the vertical wall of thread at the, open end of'thebox, means at; the opposite or closed: end of the shuttle V V r box and in; the path ofthe shut-tle, a rocking shaft connecting saidclamping means and said actuating means, and means for revels ing the clamping eans asthe shuttle begins its return movement. c Y

means for cl amping theweft open end of theshuttle box,

9: In a loom, thread at the means located at the opposite or closed" end 7 v of the shuttle box. and" in "the path of the shuttle for actuating said" clamping"means, said actuating means comprising a' pivoted swinging lever, a rack carried by said; lever and curved concentrically with the pivot of the l v r, a ro king sh ft) operatively connected with the clamping means, a'pinioni V carried by said rocking shaft in engagement thread upon the reverse movement of the 10 with said curved. rack, and a spring for reshuttle.

versing said swinging lever as the shuttle" ARTHUR RAYMOND leaves the shuttle box. V I 10. In a 100m, means for clamping the Weft thread at the open end of the shuttle J box, means actuated by the advancing end. Witnesses: of the shuttle for operating the clamping MICHAEL CANTY, means, and means for releasing the Weft EMORY W. GOUNORD.

Copies of this patent may be obtained for five cents each, by addressing the commissioner of Iatents, Washington, D. G. 

